So that the word "secret" exists in the world, it was made so that actions concerned with sex between men and women were to be carried out behind closed doors. But wanting to find out the truth behind these "secrets" is simply human nature. In fact it becomes an incentive to try taking a peek, but just what will be revealed when you do? Heaven? Hell? Or…? As in this world there is a word “secret events”, that the surrounding men and women of the sex you are and it should be carried out hidden secretly. However, such a “secret events” what, even to become want to know as to what …